Kathmandu, Jan. 23 -- While walking up the pedestrian bridge in Jamal, a white creature stares at everyone on its red-tile background. A little further west from Jamal, in Indra Chowk, a similar mosaic is pasted on the wall of a house. This creature is white too, with a red background, fashioned in classic mosaic styling.

Walking from Thamel towards Jaisi Dega, there are around 28 of these pictures. The tiles have been there since 2008, but people have no idea what they are, who kept them or why they have been placed there.

"I don't know what this is. Some guy wanted to put something outside our house back then. As it was only a tile, we let him do it. He told us it was art," said Shyam Krishna Shrestha, a resident of Shree:Gha.

The ti...